• nnullzz@lemmy.world
    link
    fedilink
    English
    arrow-up
    23
    ·
    2 months ago

    I hadn’t seen that cross with plumb bobs on it before. Searched and found this for anyone else interested.

    For road building and laying out settlements in the distinctive grid patters, the main tool of agrimensores was a device known as the groma, believed to have had its origins in Egypt. This instrument consisted of a long wooden staff, pointed at the lower end and topped with a wooden arm, about 25cm/10" long. This cross arm had a pivot to support the stellata, which was the main part of the instrument and consisted of a wooden cross with plumb bobs at the end. To use the groma, the surveyor set it up where two roads were to intersect at right angles, and used the plumb bobs as guides for laying out a line of stakes or flags. Using the naked eye, these stakes could be constantly realigned, to maintain a straight line as the course of the road was plotted. Source

  • PhlubbaDubba
    link
    fedilink
    English
    arrow-up
    10
    ·
    2 months ago

    Damn, did the Romans have sunscreen? Those guys in nothin’ but undees must be getting burned like roasted peppers!

    • PugJesus@lemmy.worldOPM
      link
      fedilink
      English
      arrow-up
      6
      ·
      2 months ago

      The wealthy and athletes sometimes used olive oil for that purpose, but I have a few doubts about the likelihood of these poor working sods having any such luxury!

      • PhlubbaDubba
        link
        fedilink
        English
        arrow-up
        4
        ·
        2 months ago

        Maybe if they got the stuff with the carthage label, heard they were so infamous for low quality product that they began labelling it as coming from Cyrenaica because of how much Greek stuff went for.

      • PhlubbaDubba
        link
        fedilink
        English
        arrow-up
        3
        ·
        2 months ago

        I just realized…the wealthy and athletes thought the solution to being sun baked was to deep fry themselves in olive oil instead‽

        • PugJesus@lemmy.worldOPM
          link
          fedilink
          English
          arrow-up
          4
          ·
          2 months ago

          Olive oil has a SPF of about 8, which means it, surprisingly, is not totally useless. They would have to scrape it off with a tool (or have a slave or assistant scrape it off) after they were finished with their outdoors activities, though.

          • AwkwardLookMonkeyPuppet@lemmy.world
            link
            fedilink
            English
            arrow-up
            2
            ·
            2 months ago

            From what I’ve read in books like The Odyssey, and The Illiad, they applied olive oil afterwards for moisturization and to soothe burns, chaffs, and cracks.

  • Zachariah@lemmy.world
    link
    fedilink
    English
    arrow-up
    6
    ·
    2 months ago

    Why do they build it layer by layer? They could have saved a lot of effort by just building the top layer.